Rocco Whalen, if nothing else, is wrapped up in the love of cooking: the idea and vitality of it, the doing of it, the invention and sustainability of it, the day-to-day enrichment of it, and, ultimately and significantly, the memory of learning all about it from his Mother. All combine as convictions he affectionately shares with regulars and first-timers who dine at his remarkable restaurant, Fahrenheit in historic Tremont, a stone’s throw from downtown Cleveland. Rocco opened Fahrenheit in 2002. It is contemporary American cuisine, always in a state of flux and perfection. It was a hit from the get-go. After 11 years,it still is: it never fails to impress.